Why does the narcissist devalue his Source of Secondary Narcissistic Supply (SSNS)? Could negative input serve as Narcissistic Supply (NS)? Does the narcissist want to be liked? How does the narcissist treat his former Sources of Narcissistic Supply?
(From the book "Malignant Self-love: Narcissism Revisited" by Sam Vaknin - Click on this link to purchase the print book, or 16 e-books, or 2 DVDs with 12 hours of video lectures on narcissists, psychopaths, and abuse in relationships: http://www.narcissistic-abuse.com/thebook.html)